Step through the shadows to a visible enemy within 10 yards, attacking 7 times over 3 sec for 100% Physical damage with your main-hand and 100% Physical damage with your off-hand.

While Blade Flurry is active, each Killing Spree attack will teleport to and damage a different nearby enemy target.

The Rogue cannot be targeted or disabled while Killing Spree is active.

Killing Spree is a rogue ability learned at level 80 for those with the Combat specialization. It is an instant ability that allows rogues to deal a large amount of burst damage to one or more enemies in range.

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While Killing Spree is active, all enemies will de-target the rogue, practically rendering the rogue immune to direct damage abilities. Note that Area of Effects and existing Damage over Time debuffs will still hit the rogue.

If there is more than one enemy in range, you may end up at the enemy you don't want to attack at the moment.

Since Killing Spree uses Weapon Damage, it deals more damage with slow weapons.

Deals incredible damage to single targets, and can be used to handle mobs efficiently when combined with Blade Flurry.

Can hit players on flying mounts and is commonly used for aerial attacks, since Killing Spree prevents falling by constantly teleporting you back to the floating victim. (See video)

Also assaults neutral targets (like critters), so beware before you use Killing Spree.

Killing Spree works with Blade Flurry, so popping both can give seven large hits on two nearby enemies each, and as such is very useful for tight situations. In other words, Killing Spree with Blade Flurry is similar to AoE.

During Killing Spree, you continue to melee. [Slice and Dice] and/or Blade Flurry should be used in conjunction with Killing Spree because of this and the 20% damage bonus of Killing Spree.

Rogues have been witnessed falling off the catwalks in the Upper Reaches of ICC while using it.

Patch 6.0.2 (14-October-2014): Killing Spree no longer increases all damage done for the duration. Its damage has been increased to compensate.

Patch 5.4.0 (10-Sep-2013) Killing Spree targeting has been changed. If Blade Flurry is not active, Killing Spree will now hit the Rogue's target 7 times or pick the closest eligible target if none had been selected. Killing Spree will continue to work as it has while Blade Flurry is active.

Patch 3.3.0 (08-Dec-2009): Entering a vehicle will now cause this ability to halt, and attempting to use it while on a vehicle will result in an error message.

Patch 3.2.0 (04-Aug-2009): Error message when no targets are in range has been changed to "Out of Range."

Patch 3.1.0 (14-Apr-2009): Now also increases all damage done by the rogue while active by 20%.

Patch 3.0.8 (2009-01-20): This ability no longer breaks stealth if it fails due to all targets being out of range.

Patch 3.0.3 (04-Nov-2008): Instead of making the rogue untargetable, now causes all players to lose targeting on the rogue and the rogue to be unstoppable during its duration.